Specifications
Fits most standard machines up to 17-1/2" w x 7-3/8" d
40" w x 19-3/4" d x 28-1/2" h
Arrives fully assembled in 1 box weighing 35 lbs

Video on Comparable Sewing Table for FreeArm Inserts.
Is the machine platform height adjustable?
Yes, there are four wingnuts, one for each corner of the platform, underneath the bottom of the table. These can be screwed in more to bring the level up, or unscrewed to bring it down.